hadoop StringAttributeValue 源码
haddop StringAttributeValue 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/nodelabels/StringAttributeValue.java
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.nodelabels;
import java.io.IOException;
/**
* Attribute value for String NodeAttributeType.
*/
public class StringAttributeValue implements AttributeValue {
private String value = "";
@Override
public boolean compareForOperation(AttributeValue other,
AttributeExpressionOperation op) {
if (other instanceof StringAttributeValue) {
StringAttributeValue otherString = (StringAttributeValue) other;
switch (op) {
case IN:
return value.equals(otherString.value);
case NOTIN:
return !value.equals(otherString.value);
default:
return false;
}
} else {
return false;
}
}
@Override
public void validateAndInitializeValue(String valueStr) throws IOException {
NodeLabelUtil.checkAndThrowAttributeValue(valueStr);
this.value = valueStr;
}
@Override
public String getValue() {
return value;
}
public String toString() {
return getValue();
}
}
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